Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

geerky42

  • 2 years ago

If \( \dfrac{x+2}{x(x-4)} = \dfrac{\text{A}}{x} + \dfrac{\text{B}}{x - 4}\), find \( \text{A+B} \)

  • This Question is Closed
  1. geerky42
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @Hero @cwrw238

  2. mahmit2012
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1355449302302:dw|

  3. geerky42
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I don't get it. Please clarify your solution. Thanks.

  4. mahmit2012
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    It means I chose one coefficient and multiplied to the denuminator of that and then I put the root on both sides.

  5. mahmit2012
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    For example for finding out A I chose x in the denuminator then multiplied to x and then put x=0 to both sides and got A. For B is the same way.

  6. mahmit2012
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Is it clearfied?

  7. zepdrix
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @geerky42 This is an exercise in partial fractions. Do you remember how to do those?

  8. geerky42
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Sorry, I still don't get it. I mean, why does it work?

  9. finkimlost
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yea was gonna ask if it was a calculas problem

  10. geerky42
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Partial fractions? Sorry, don't ring any bells.

  11. geerky42
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    So I have to use calculus to solve this problem?

  12. finkimlost
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    actually nah just cal u have to use thsi to get integral

  13. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.